adverse
Harmful or unfavorable
Adverse means unfavorable or harmful.
Adverse conditions work against you; an adverse reaction to medication is a negative one.
Adverse applies to circumstances, effects, or outcomes rather than people—someone opposed to you is an adversary, not adverse.
The project faced adverse weather throughout construction.
Causing harm or damage
- damagingCausing loss or injury
- deleteriousCausing harm or damage
- injuriousCausing physical harm
- toxicCapable of causing harm
noxious · hazardous · pernicious · destructive · dangerous · poisonous · malignant · baneful
Causing harm or hindrance
- unpropitiousNot favorable for success
- inauspiciousShowing poor prospects
- unfortunateDeserving of pity
- unluckyProne to misfortune
negative · bleak · grim · dire · ominous · discouraging · disheartening · pessimistic
Actively opposed or hostile
- opposedAgainst something stated
- opposingStanding against something
- contraryOpposed in nature
- inimicalHarmful or hostile
confrontational · combative · aggressive · belligerent · resistant · oppositional · unsympathetic · unfriendly
Barrier to progress
- impedimentThing that obstructs progress
- obstructionSomething blocking the way
- barrierObstruction preventing passage
- setbackReverse in progress
difficulty · hardship · challenge · stumbling block · handicap · roadblock · snag · complication
Response to stimulus
- effectResult of a cause
- eventA notable occurrence
- side effectUnintended secondary outcome
- symptomIndicator of disease
complication · contraindication · allergy · sensitivity · intolerance · interaction · outcome · response
detrimental
Causing harm or damage
- damagingCausing loss or injury
- deleteriousCausing harm or damage
- injuriousCausing physical harm
toxic · noxious · hazardous · pernicious · destructive · dangerous · poisonous · malignant · baneful · baleful
disadvantageous
Causing harm or hindrance
- unpropitiousNot favorable for success
- inauspiciousShowing poor prospects
- unfortunateDeserving of pity
unlucky · negative · bleak · grim · dire · ominous · discouraging · disheartening · pessimistic · gloomy
antagonistic
Actively opposed or hostile
inimical · confrontational · combative · aggressive · belligerent · resistant · oppositional · unsympathetic · unfriendly · unwelcoming
hindrance
Barrier to progress
- impedimentThing that obstructs progress
- obstructionSomething blocking the way
- barrierObstruction preventing passage
setback · difficulty · hardship · challenge · stumbling block · handicap · roadblock · snag · complication · hurdle
reaction
Response to stimulus
- effectResult of a cause
- eventA notable occurrence
- side effectUnintended secondary outcome
symptom · complication · contraindication · allergy · sensitivity · intolerance · interaction · outcome · response · toxicity
- Danger Levelsdanger, high risk, high-risk, low risk, critical
- inferiorinferior, substandard, second-rate, second-class, subpar
adversebeneficial
Producing good results
favorable · advantageous · helpful · positive · propitious
adversefavorable
Inclined toward approval
propitious · auspicious · fortunate · lucky · opportune
adversefavorable
Inclined toward approval
supportive · sympathetic · friendly · well-disposed · amicable
- overcoming adversityPrevailing against difficult circumstances
- adverse reactionHarmful response to intervention
- adverse effectsHarmful unintended consequences
- triumph over adversitySucceed despite obstacles
- adverse selectionPre-contract hidden knowledge problem
- childhood adversityDifficulties experienced when young
advertise, adversary, adversity, adverse selection, adversely, adversarial, adversities, adverse effects, adverse effect